654211632 has 80 divisors (see below), whose sum is σ = 1804670208. Its totient is φ = 203723520.

The previous prime is 654211601. The next prime is 654211633. The reversal of 654211632 is 236112456.

It is a self number, because there is not a number n which added to its sum of digits gives 654211632.

It is not an unprimeable number, because it can be changed into a prime (654211633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40582 + ... + 54362.

Almost surely, 2^654211632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654211632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (902335104).

654211632 is an abundant number, since it is smaller than the sum of its proper divisors (1150458576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

654211632 is a wasteful number, since it uses less digits than its factorization.

654211632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13858 (or 13852 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 654211632 is about 25577.5611034360. The cubic root of 654211632 is about 868.1059919977.

The spelling of 654211632 in words is "six hundred fifty-four million, two hundred eleven thousand, six hundred thirty-two".